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124770-90-7

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124770-90-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124770-90-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,7,7 and 0 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 124770-90:
(8*1)+(7*2)+(6*4)+(5*7)+(4*7)+(3*0)+(2*9)+(1*0)=127
127 % 10 = 7
So 124770-90-7 is a valid CAS Registry Number.

124770-90-7Downstream Products

124770-90-7Relevant articles and documents

3-METHYLXANTHOSINE: SYNTHESIS AND ACIDIC HYDROLYSIS OF THE GLYCOSYL BOND

Itaya, Taisuke,Harada, Tsunehiro

, p. 1235 - 1238 (2007/10/02)

An improved synthesis of 3,9-dimethylxanthine (2a) was achieved via the reaction of 1-methyl-5-(methylamino)-imidazole-4-carboxamide (3a) with EtOCOCl in acetate buffer (pH 5) followed by treatment with aqueous NaOH.This method was successfully applied to the synthesis of 3-methylxanthosine (2b), whose N-glycosidic bond proved to be remarkably sensitive to acidic hydrolysis: 2b underwent hydrolysis at a rate more than 1000 times faster than that of xanthosine (10) in 1.0N aqueous HCl at 25 deg C.Keywords: 3-methylxanthosine synthesis; 3,9-disubstituted xanthine; imidazolylcarbamic acid ester; base-catalyzed cyclization; amide carbamate cyclization; N-glycosidic bond hydrolysis; carbamate cis-trans isomerism; NMR; kinetic study

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